What powers 
web-calculator.ru?
Last seen Sep 2026 · 10 technologies across 10 categories
Advertising
Analytics
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Security
Segmentation
Web frameworks
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 27% desktop
Russia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.56 / 10 · ranked #833,724 of all domains
94 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Russian
- Weight: 0.9 MB · 184 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Веб-калькуляторы
- Industry: Software and apps (declares
SoftwareApplication)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Timeweb (72.56.5.197)
- DNS: Beget
- Email: REG.RU
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 82,925
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected ADFOX Sep 2026
- detected Adobe Audience Manager Sep 2026
- detected Yandex.Metrika Sep 2026
- dropped FancyBox Aug 2026
- dropped Yandex.Metrika Aug 2026
- detected Open Graph Jul 2026
- detected Ubuntu Jul 2026
- dropped ADFOX Dec 2025
- dropped Adobe Audience Manager Dec 2025
- dropped REG.RU Dec 2025